CPC E01C 23/088 (2013.01) [E01C 23/127 (2013.01); E21C 35/193 (2013.01); E21C 47/00 (2013.01); F16B 19/02 (2013.01); F16B 37/14 (2013.01); F16B 39/02 (2013.01)] | 16 Claims |
1. A bearing component for mounting a replaceable milling drum on an earth working machine, comprising:
an annular connecting flange having a central axis;
a bearing stem protruding from the connecting flange axially in a first direction to a first axial end, the bearing stem having an outer surface including at least first and second cylindrical bearing surfaces axially spaced from each other, a furthest one of the cylindrical bearing surfaces from the connecting flange having a smaller diameter than a next furthest one of the cylindrical bearing surfaces from the connecting flange, the bearing stem having a central opening therethrough co-axial with the central axis; and
the bearing stem further including a centering recess open at a second axial end opposite the first axial end, the centering recess including an opening angle decreasing in steps so that the centering recess tapers in the first direction, the centering recess forming a portion of the central opening.
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